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Cosmic Dust

9 Comments
  1. Nikocage

    May 30,  · Cosmic dust is a substance found throughout the universe. It consists of small grains of material and aggregates of such grains, with a composition that can vary radically, depending on the circumstances in which the dust is formed.
  2. Zulkishura

    Cosmic dust consists of tiny particles of solid material floating around in the space between the stars. It is not the same as the dust you find in your house but more like smoke with small particles varying from collections of just a few molecules to grains of mm in size. Dust is important because we find lots of it around young stars.
  3. Akigar

    Cosmic dust is submillimeter debris shed by comets, asteroids, moons, and planets. These small particles are the largest source of extraterrestrial material accreting on the present-day Earth.
  4. Jujind

    Aug 30,  · Cosmic dust grains include samples from comets and asteroids, containing material in the same condition as when the solar system began to form. Unlike meteorites, cosmic dust samples all bodies in the solar system.
  5. Akishura

    Definition of cosmic dust: very fine particles of solid matter found in any part of the universe Examples of cosmic dust in a Sentence Recent Examples on the Web Somewhere in the cosmic dust of the .
  6. Doutaur

    Aug 31,  · Our knowledge about cosmic dust grains comes from their interaction with starlight. New information is also now arriving from cosmologists like me studying the Universe’s oldest light: the cosmic microwave background radiation, the fossil heat left over from the formation of hydrogen and helium a few minutes after the Big Bang.
  7. Akiran

    Mar 12,  · The earth is a dirty place, and we aren't getting much help from space. Every day, dust from meteorites, comets, and other billion-year-old pieces of our solar system fall into the earth's Author: Mary Beth Griggs.
  8. Gosida

    The Cosmic Dust Analyzer, or CDA, detected dust particles one-thousandth of a millimeter wide (the size of smoke particles) and sometimes as small as one-millionth of a millimeter (smaller than a virus). As a dust particle entered the CDA, the instrument determined the particle's charge, speed, size and which direction it was going.
  9. Nektilar

    Apr 17,  · Dust is found throughout the plane of the Milky Way. The dust particles are about the same size as the wavelength of light and consist of rocky cores that are either sootlike (carbon-rich) or sandlike (silicates) with mantles made of ices such as water, ammonia, and methane.

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